The temperature in a hill station on Tuesday morning was 3°C below zero. By afternoon, the temperature rose by 8°C.

(a) Represent the morning temperature and the change using integers

(b) What was the temperature in the afternoon?

(a) “3°C below zero” is represented as the integer -3°C (morning temperature).

A rise of 8°C is represented as the integer +8°C (the change).

(b) Afternoon temperature = morning temperature + change

⇒ Afternoon temperature = -3 + 8

⇒ Afternoon temperature = 5°C.